It was the primitive pyramid that caught my eye. I wondered what this construct — it looked like a child’s version of an Egyptian structure sculpted in some dark, pebbly Play-Doh — was doing in a ...

The original version of this story appeared in Quanta Magazine. In 360 BC, Plato envisioned the cosmos as an arrangement of five geometric shapes: flat-sided solids called polyhedra. These immediately ...

We've got ourselves a nutrition pyramid. Now we've got to figure out how to use it. It's not quite as simple as it looks, but it'll probably end up in every classroom in America. So say good night to ...